Boeing 777

Major international airlines have canceled flights heading to the U.S. or changed the planes they’re using

The investigation into the engine explosion on a United Airlines flight over the weekend is homing in on why engine fan blades broke off.

Boeing is calling for all airlines to ground their 777 model airplanes equipped with the Pratt & Whitney PW4000 engine, the type of engine that blew apart after takeoff from Denver this weekend.